Voltage Regulators & Voltage Controllers

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BD9x Integrated MOSFET DC-DC Buck Converters

ROHM Semiconductor BD9x Integrated MOSFET DC-DC Buck Converters are synchronous buck switching regulators with built-in power MOSFETs. These ICs provide currents in a range from 1A to 6A. ROHM BD9x DC-DC Buck Converters deliver fast transient response by employing a constant on-time control system. This allows high oscillating frequency at low inductance. The devices employ an original constant on-time control method that provides low consumption at light load. This feature makes these devices ideal for equipment that demands minimal standby power consumption.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Output Voltage
Switching Voltage Regulators 7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter BD9E300UEFJ-LBE2 ROHM Semiconductor 1: $2.76 2,357In Stock	Mfr. Part No. BD9E300UEFJ-LBE2 Mouser Part No 755-BD9E300UEFJ-LBE2	ROHM Semiconductor	Switching Voltage Regulators 7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,357In Stock	Cut Tape $2.76 $2.06 $1.88 $1.69 Reel $1.43 View $1.60 $1.56 $1.49 $1.40	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	1 V to 25.2 V
Switching Voltage Regulators Buck DC/DC Converter w/MOSFET 2.7-5.5V BD9B100MUV-E2 ROHM Semiconductor 1: $1.10 59,432In Stock	Mfr. Part No. BD9B100MUV-E2 Mouser Part No 755-BD9B100MUV-E2	ROHM Semiconductor	Switching Voltage Regulators Buck DC/DC Converter w/MOSFET 2.7-5.5V Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	59,432In Stock	Cut Tape $1.10 $0.79 $0.711 $0.626 Reel $0.518 View $0.585 $0.561 $0.542 $0.504 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-16	800 mV to 4.4 V
Switching Voltage Regulators CONV DCDC SNGL STPDN 4.75V-18V 8PIN BD9325FJ-E2 ROHM Semiconductor 1: $2.33 1,445In Stock	Mfr. Part No. BD9325FJ-E2 Mouser Part No 755-BD9325FJ-E2	ROHM Semiconductor	Switching Voltage Regulators CONV DCDC SNGL STPDN 4.75V-18V 8PIN Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	1,445In Stock	Cut Tape $2.33 $1.72 $1.57 $1.41 Reel $1.21 View $1.33 $1.29 $1.24 $1.19 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOP-J-8	18 V
Switching Voltage Regulators High Eff. Stepdown Sw. Reg. 2A 4.5-5.5V BD9111NV-E2 ROHM Semiconductor 1: $3.64 1,103In Stock	Mfr. Part No. BD9111NV-E2 Mouser Part No 755-BD9111NV-E2	ROHM Semiconductor	Switching Voltage Regulators High Eff. Stepdown Sw. Reg. 2A 4.5-5.5V Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	1,103In Stock	Cut Tape $3.64 $2.76 $2.52 $2.27 Reel $1.91 View $2.16 $2.13 $2.04 $1.87 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	SON-8	3.3 V
Switching Voltage Regulators SWITCH REGULATOR PWR MOSFET 2A BD91361MUV-E2 ROHM Semiconductor 1: $3.40 2,500In Stock	Mfr. Part No. BD91361MUV-E2 Mouser Part No 755-BD91361MUV-E2	ROHM Semiconductor	Switching Voltage Regulators SWITCH REGULATOR PWR MOSFET 2A Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,500In Stock	Cut Tape $3.40 $2.62 $2.38 $2.13 View Reel $1.72 $2.01 $1.97 $1.87 $1.72 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	VQFNV4040-EP-20	800 mV to 3.3 V
Switching Voltage Regulators PMIC BD9576MUF-CE2 ROHM Semiconductor 1: $14.78 2,000In Stock	Mfr. Part No. BD9576MUF-CE2 Mouser Part No 755-BD9576MUF-CE2	ROHM Semiconductor	Switching Voltage Regulators PMIC Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,000In Stock	Cut Tape $14.78 $11.57 $10.77 $9.90 View Reel $9.19 $9.80 $9.22 $9.19 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	VQFNFV8080-EP-56
Switching Voltage Regulators 2.7V-5.5V 4A MOSFET Sngl Sync Buck Conv BD9A400MUV-E2 ROHM Semiconductor 1: $1.15 4,662In Stock	Mfr. Part No. BD9A400MUV-E2 Mouser Part No 755-BD9A400MUV-E2	ROHM Semiconductor	Switching Voltage Regulators 2.7V-5.5V 4A MOSFET Sngl Sync Buck Conv Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	4,662In Stock	Cut Tape $1.15 $0.832 $0.751 $0.661 Reel $0.541 View $0.616 $0.59 $0.565 $0.528 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFNV3030-EP-16	800 mV to 3.85 V
Switching Voltage Regulators 1ch Buck Converter, 4.5V to 42V Input Voltage Range 3.5A Output Current Integrated FET BD9G401UEFJ-ME2 ROHM Semiconductor 1: $2.66 2,163In Stock	Mfr. Part No. BD9G401UEFJ-ME2 Mouser Part No 755-BD9G401UEFJ-ME2	ROHM Semiconductor	Switching Voltage Regulators 1ch Buck Converter, 4.5V to 42V Input Voltage Range 3.5A Output Current Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,163In Stock	Cut Tape $2.66 $1.99 $1.83 $1.63 Reel $1.40 View $1.54 $1.49 $1.43 $1.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	800 mV to 42 V
Switching Voltage Regulators RECT 650V 12A SM SCHOTTKY BD9C501EFJ-E2 ROHM Semiconductor 1: $2.13 2,066In Stock	Mfr. Part No. BD9C501EFJ-E2 Mouser Part No 755-BD9C501EFJ-E2	ROHM Semiconductor	Switching Voltage Regulators RECT 650V 12A SM SCHOTTKY Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,066In Stock	Cut Tape $2.13 $1.58 $1.45 $1.28 Reel $1.09 View $1.22 $1.17 $1.13 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	800 mV to 12.6 V
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET BD95821MUV-E2 ROHM Semiconductor 1: $1.05 5,825In Stock	Mfr. Part No. BD95821MUV-E2 Mouser Part No 755-BD95821MUV-E2	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	5,825In Stock	Cut Tape $1.05 $0.759 $0.686 $0.604 View Reel $0.487 $0.564 $0.541 $0.526 $0.487 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFNV3030-EP-16	800 mV to 5.5 V
Switching Voltage Regulators 2.7-5.5V 6A 30mohm Sync Buck DC/DC Conv BD9B600MUV-E2 ROHM Semiconductor 1: $1.59 2,632In Stock	Mfr. Part No. BD9B600MUV-E2 Mouser Part No 755-BD9B600MUV-E2	ROHM Semiconductor	Switching Voltage Regulators 2.7-5.5V 6A 30mohm Sync Buck DC/DC Conv Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,632In Stock	Cut Tape $1.59 $1.17 $1.06 $0.936 Reel $0.783 View $0.88 $0.846 $0.826 $0.771 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFNV3030-EP-16	800 mV to 4.4 V
Switching Voltage Regulators 7-36Vin,2.5A MOSFET DC/DC Converter BD9E300EFJ-LBE2 ROHM Semiconductor 1: $4.52 2,461In Stock	Mfr. Part No. BD9E300EFJ-LBE2 Mouser Part No 755-BD9E300EFJ-LBE2	ROHM Semiconductor	Switching Voltage Regulators 7-36Vin,2.5A MOSFET DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,461In Stock	Cut Tape $4.52 $3.43 $3.16 $2.86 Reel $2.44 View $2.71 $2.55 $2.43 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	1 V to 25.2 V
Switching Voltage Regulators 20V/1A 1MHz w/MOSFET PWM Buck Conv BD9227F-E2 ROHM Semiconductor 1: $1.38 3,165In Stock	Mfr. Part No. BD9227F-E2 Mouser Part No 755-BD9227F-E2	ROHM Semiconductor	Switching Voltage Regulators 20V/1A 1MHz w/MOSFET PWM Buck Conv Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	3,165In Stock	Cut Tape $1.38 $1.01 $0.901 $0.80 View Reel $0.649 $0.75 $0.72 $0.697 $0.649 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOP-8	1.512 V to 20 V
Switching Voltage Regulators 3.6-35V 100-1500kHz 1 Chan Step-Down BD9845FV-E2 ROHM Semiconductor 1: $1.79 2,761In Stock	Mfr. Part No. BD9845FV-E2 Mouser Part No 755-BD9845FV-E2	ROHM Semiconductor	Switching Voltage Regulators 3.6-35V 100-1500kHz 1 Chan Step-Down Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,761In Stock	Cut Tape $1.79 $1.33 $1.20 $1.07 View Reel $0.833 $0.998 $0.961 $0.955 $0.833 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SSOP-B-14	29 V to 36 V
Switching Voltage Regulators 2.7V to 5.5V Input, 3.0A Integrated MOSFET Buck DC/DC Converter BD9B300MUV-E2 ROHM Semiconductor 1: $1.21 4,035In Stock	Mfr. Part No. BD9B300MUV-E2 Mouser Part No 755-BD9B300MUV-E2	ROHM Semiconductor	Switching Voltage Regulators 2.7V to 5.5V Input, 3.0A Integrated MOSFET Buck DC/DC Converter	Datasheet	4,035In Stock	Cut Tape $1.21 $0.869 $0.787 $0.692 View Reel $0.525 $0.648 $0.621 $0.604 $0.525 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFNV3030-EP-16	800 mV to 4.4 V
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET BD9060HFP-CTR ROHM Semiconductor 1: $3.48 3,081In Stock	Mfr. Part No. BD9060HFP-CTR Mouser Part No 755-BD9060HFP-CTR	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET Learn More about ROHM Semiconductor rohm automotive switching regulators	Datasheet	3,081In Stock	Cut Tape $3.48 $2.62 $2.45 $2.20 Reel $1.83 View $2.08 $2.04 $1.93 $1.81 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD/SMT		800 mV to 35 V
Switching Voltage Regulators Buck DC/DC Converter w/MOSFET 2.7-5.5V BD9B400MUV-E2 ROHM Semiconductor 1: $1.20 24,204In Stock	Mfr. Part No. BD9B400MUV-E2 Mouser Part No 755-BD9B400MUV-E2	ROHM Semiconductor	Switching Voltage Regulators Buck DC/DC Converter w/MOSFET 2.7-5.5V Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	24,204In Stock	Cut Tape $1.20 $0.857 $0.771 $0.678 Reel $0.561 View $0.634 $0.607 $0.588 $0.547 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFNV3030-EP-16	800 mV to 4.4 V
Switching Voltage Regulators 4.5V to 18V Input, 4.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter BD9C401EFJ-E2 ROHM Semiconductor 1: $1.78 2,041In Stock	Mfr. Part No. BD9C401EFJ-E2 Mouser Part No 755-BD9C401EFJ-E2	ROHM Semiconductor	Switching Voltage Regulators 4.5V to 18V Input, 4.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,041In Stock	Cut Tape $1.78 $1.31 $1.19 $1.06 Reel $0.89 View $0.997 $0.959 $0.955 $0.87 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	800 mV to 12.6 V
Switching Voltage Regulators 7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter BD9E301UEFJ-LBE2 ROHM Semiconductor 1: $2.76 2,265In Stock	Mfr. Part No. BD9E301UEFJ-LBE2 Mouser Part No 755-BD9E301UEFJ-LBE2	ROHM Semiconductor	Switching Voltage Regulators 7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,265In Stock	Cut Tape $2.76 $2.06 $1.88 $1.69 Reel $1.43 View $1.60 $1.56 $1.49 $1.40	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	1 V to 25.2 V
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET BD95831MUV-E2 ROHM Semiconductor 1: $1.10 5,969In Stock	Mfr. Part No. BD95831MUV-E2 Mouser Part No 755-BD95831MUV-E2	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	5,969In Stock	Cut Tape $1.10 $0.793 $0.716 $0.63 Reel $0.512 View $0.59 $0.565 $0.548 $0.509 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFNV3030-EP-16	800 mV to 5.5 V
Switching Voltage Regulators 7-36Vin,1A MOSFET DC/DC Converter BD9E101FJ-LBGE2 ROHM Semiconductor 1: $3.47 2,405In Stock	Mfr. Part No. BD9E101FJ-LBGE2 Mouser Part No 755-BD9E101FJ-LBGE2	ROHM Semiconductor	Switching Voltage Regulators 7-36Vin,1A MOSFET DC/DC Converter Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,405In Stock	Cut Tape $3.47 $2.84 $2.51 $2.33 Reel $2.13 View $2.23 $2.21 $2.16 $2.07 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOP-J-8	1 V to 25.2 V
Switching Voltage Regulators PwrCntrl IC 5.5-28V Dual DC/DC Cntlr BD95602MUV-LBE2 ROHM Semiconductor 1: $5.26 2,498In Stock	Mfr. Part No. BD95602MUV-LBE2 Mouser Part No 755-BD95602MUV-LBE2	ROHM Semiconductor	Switching Voltage Regulators PwrCntrl IC 5.5-28V Dual DC/DC Cntlr Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,498In Stock	Cut Tape $5.26 $4.01 $3.69 $3.35 View Reel $2.92 $3.17 $3.09 $3.05 $2.92 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	VQFNV5050-EP-32	1 V to 5.5 V
Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET BD9327EFJ-LBE2 ROHM Semiconductor 1: $3.27 2,139In Stock	Mfr. Part No. BD9327EFJ-LBE2 Mouser Part No 755-BD9327EFJ-LBE2	ROHM Semiconductor	Switching Voltage Regulators IC Pwr Swtch Reg Integrated FET Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	2,139In Stock	Cut Tape $3.27 $2.45 $2.26 $2.02 Reel $1.74 View $1.92 $1.90 $1.79 $1.73 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	18 V
Switching Voltage Regulators CONV DCDC SNGL STPDN 4.75V-18V BD9327EFJ-E2 ROHM Semiconductor 1: $3.26 58In Stock	Mfr. Part No. BD9327EFJ-E2 Mouser Part No 755-BD9327EFJ-E2	ROHM Semiconductor	Switching Voltage Regulators CONV DCDC SNGL STPDN 4.75V-18V Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	58In Stock	Cut Tape $3.26 $2.44 $2.24 $1.97 Reel $1.66 View $1.87 $1.84 $1.79 $1.63 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	HTSOP-J8	18 V
Switching Voltage Regulators STEP-DOWN SWITCHING REGULATOR BD9102FVM-TR ROHM Semiconductor 1: $2.93 3,000In Stock	Mfr. Part No. BD9102FVM-TR Mouser Part No 755-BD9102FVM-TR	ROHM Semiconductor	Switching Voltage Regulators STEP-DOWN SWITCHING REGULATOR Learn More about ROHM Semiconductor rohm bd9 buck converter	Datasheet	3,000In Stock	Cut Tape $2.93 $2.17 $2.00 $1.79 View Reel $1.41 $1.69 $1.65 $1.57 $1.41 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	MSOP-8	1.24 V